The logical OR operator || combines two conditions. The result is 1 when at least one operand is non-zero. It produces 0 only when both operands are zero.

#include <stdio.h>

int main()
{
    int age = 16;
    int has_permission = 1;

    printf("Result: %d\n", age >= 18 || has_permission);

    return 0;
}

Example Output #

Result: 1

Explanation #

The expression:

age >= 18 || has_permission

contains two operands.

age >= 18 produces 0 because age is 16. has_permission contains the non-zero value 1.

Since at least one operand is non-zero, the || expression produces 1.

The logical OR operator follows these results:

C uses short-circuit evaluation for ||. If the left operand evaluates to a non-zero value, the right operand is not evaluated because the overall result is already known to be true.